The live option for the Tipsy notice tool has been removed. Gadgets and user scripts which use it need to be updated. [4]

Problems

Editors who use Firefox 50 might get logged out or fail to save their edits. This is because of a browser bug. Until this is fixed you can enter about:config in the address bar and set network.cookie.maxPerHost to 5000. Firefox 50 is the current version of Firefox. [5]